package com.ma.gulimall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ma.gulimall.product.dao.AttrGroupDao;
import com.ma.gulimall.product.entity.AttrEntity;
import com.ma.gulimall.product.entity.AttrGroupEntity;
import com.ma.gulimall.product.service.AttrGroupService;
import com.ma.gulimall.product.service.AttrService;
import com.ma.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.ma.gulimall.product.vo.SpuItemAttrGroupVo;
import com.ma.gulimall.utils.PageUtils;
import com.ma.gulimall.utils.Query;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    @Autowired
    AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {

        //select * from pms_attr_group where catelog_id=?  and (attr_group_id=key or attr_group_name like %key%)
        //QueryWrapper构造查新条件 模糊查询

        String key = (String) params.get("key");
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<>();
        if(!StringUtils.isEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_group_id",key).or().like("attr_group_name",key);
            });


        }
        if(catelogId==0){
            //如果    传过来的三级分类的 所属分类ID ： catelogId=0，   查询全部数据
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }else {
            wrapper.eq("catelog_id",catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), wrapper);
            return new PageUtils(page);
        }
    }

    /**
     * 根据分类id
     * `pms_attr_group`中在查询出所有的属性分组attr_group_id
     * 然后在`pms_attr_attrgroup_relation`查这些分组里面的属性attr_id
     * pms_attr中查到attr_name
     * */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1、查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>()
                .eq("catelog_id", catelogId));
        //2、查询所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo attrGroupWithAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group, attrGroupWithAttrsVo);

            List<AttrEntity> attrs = attrService.getRelationAttr(group.getAttrGroupId());
            attrGroupWithAttrsVo.setAttrs(attrs);
            return attrGroupWithAttrsVo;
        }).collect(Collectors.toList());

        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId,Long catelogId) {
        //spu 对应的属性分组，属性值
        AttrGroupDao baseMapper = this.getBaseMapper();
        List<SpuItemAttrGroupVo> vos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId,catelogId);
        return vos;
    }


}